[webkit-changes] cvs commit: WebCore/layout-tests/fast/js integer-extremes-expected.txt integer-extremes.html

Geoffrey ggaren at opensource.apple.com
Mon Sep 26 11:07:08 PDT 2005


ggaren      05/09/26 11:07:07

  Modified:    .        ChangeLog
  Added:       layout-tests/fast/js integer-extremes-expected.txt
                        integer-extremes.html
  Log:
          - Added layout test for http://bugzilla.opendarwin.org/show_bug.cgi?id=5053
          Need to restore int/long changes to simple_number.h
  
          Test cases added:
  
          * layout-tests/fast/js/integer-extremes-expected.txt: Added.
          * layout-tests/fast/js/integer-extremes.html: Added.
  
  Revision  Changes    Path
  1.164     +10 -0     WebCore/ChangeLog
  
  Index: ChangeLog
  ===================================================================
  RCS file: /cvs/root/WebCore/ChangeLog,v
  retrieving revision 1.163
  retrieving revision 1.164
  diff -u -r1.163 -r1.164
  --- ChangeLog	24 Sep 2005 22:39:27 -0000	1.163
  +++ ChangeLog	26 Sep 2005 18:07:06 -0000	1.164
  @@ -1,3 +1,13 @@
  +2005-09-26  Geoffrey Garen  <ggaren at apple.com>
  +
  +        - Added layout test for http://bugzilla.opendarwin.org/show_bug.cgi?id=5053
  +        Need to restore int/long changes to simple_number.h
  +
  +        Test cases added:
  +
  +        * layout-tests/fast/js/integer-extremes-expected.txt: Added.
  +        * layout-tests/fast/js/integer-extremes.html: Added.
  +
   2005-09-24  Maciej Stachowiak  <mjs at apple.com>
   
           - some JavaScript syntax test cases
  
  
  
  1.1                  WebCore/layout-tests/fast/js/integer-extremes-expected.txt
  
  Index: integer-extremes-expected.txt
  ===================================================================
  This test verifies that the bit twiddling done in JavaScriptCore's integer machinery works correctly on the current platform.
  
  Below, you will see a listing of the extremes related to representing integers using a certain number of bits. If the test succeeds, you should see:
  
  0, -0, and -1
  max: 2 ^ ([number of bits] - 1) - 1
  min: -(max + 1)
  a corresponding max + 1 and min - 1
  -1: -1
  
  0: 0
  
  -0: 0
  
  -----
  
  bits used to store value: 8
  
  min: -128
  
  min - 1: -129
  
  max: 127
  
  max + 1: 128
  
  -----
  
  bits used to store value: 9
  
  min: -256
  
  min - 1: -257
  
  max: 255
  
  max + 1: 256
  
  -----
  
  bits used to store value: 10
  
  min: -512
  
  min - 1: -513
  
  max: 511
  
  max + 1: 512
  
  -----
  
  bits used to store value: 11
  
  min: -1024
  
  min - 1: -1025
  
  max: 1023
  
  max + 1: 1024
  
  -----
  
  bits used to store value: 12
  
  min: -2048
  
  min - 1: -2049
  
  max: 2047
  
  max + 1: 2048
  
  -----
  
  bits used to store value: 13
  
  min: -4096
  
  min - 1: -4097
  
  max: 4095
  
  max + 1: 4096
  
  -----
  
  bits used to store value: 14
  
  min: -8192
  
  min - 1: -8193
  
  max: 8191
  
  max + 1: 8192
  
  -----
  
  bits used to store value: 15
  
  min: -16384
  
  min - 1: -16385
  
  max: 16383
  
  max + 1: 16384
  
  -----
  
  bits used to store value: 16
  
  min: -32768
  
  min - 1: -32769
  
  max: 32767
  
  max + 1: 32768
  
  -----
  
  bits used to store value: 17
  
  min: -65536
  
  min - 1: -65537
  
  max: 65535
  
  max + 1: 65536
  
  -----
  
  bits used to store value: 18
  
  min: -131072
  
  min - 1: -131073
  
  max: 131071
  
  max + 1: 131072
  
  -----
  
  bits used to store value: 19
  
  min: -262144
  
  min - 1: -262145
  
  max: 262143
  
  max + 1: 262144
  
  -----
  
  bits used to store value: 20
  
  min: -524288
  
  min - 1: -524289
  
  max: 524287
  
  max + 1: 524288
  
  -----
  
  bits used to store value: 21
  
  min: -1048576
  
  min - 1: -1048577
  
  max: 1048575
  
  max + 1: 1048576
  
  -----
  
  bits used to store value: 22
  
  min: -2097152
  
  min - 1: -2097153
  
  max: 2097151
  
  max + 1: 2097152
  
  -----
  
  bits used to store value: 23
  
  min: -4194304
  
  min - 1: -4194305
  
  max: 4194303
  
  max + 1: 4194304
  
  -----
  
  bits used to store value: 24
  
  min: -8388608
  
  min - 1: -8388609
  
  max: 8388607
  
  max + 1: 8388608
  
  -----
  
  bits used to store value: 25
  
  min: -16777216
  
  min - 1: -16777217
  
  max: 16777215
  
  max + 1: 16777216
  
  -----
  
  bits used to store value: 26
  
  min: -33554432
  
  min - 1: -33554433
  
  max: 33554431
  
  max + 1: 33554432
  
  -----
  
  bits used to store value: 27
  
  min: -67108864
  
  min - 1: -67108865
  
  max: 67108863
  
  max + 1: 67108864
  
  -----
  
  bits used to store value: 28
  
  min: -134217728
  
  min - 1: -134217729
  
  max: 134217727
  
  max + 1: 134217728
  
  -----
  
  bits used to store value: 29
  
  min: -268435456
  
  min - 1: -268435457
  
  max: 268435455
  
  max + 1: 268435456
  
  -----
  
  bits used to store value: 30
  
  min: -536870912
  
  min - 1: -536870913
  
  max: 536870911
  
  max + 1: 536870912
  
  -----
  
  bits used to store value: 31
  
  min: -1073741824
  
  min - 1: -1073741825
  
  max: 1073741823
  
  max + 1: 1073741824
  
  -----
  
  bits used to store value: 32
  
  min: -2147483648
  
  min - 1: -2147483649
  
  max: 2147483647
  
  max + 1: 2147483648
  
  -----
  
  bits used to store value: 33
  
  min: -4294967296
  
  min - 1: -4294967297
  
  max: 4294967295
  
  max + 1: 4294967296
  
  -----
  
  bits used to store value: 34
  
  min: -8589934592
  
  min - 1: -8589934593
  
  max: 8589934591
  
  max + 1: 8589934592
  
  -----
  
  bits used to store value: 35
  
  min: -17179869184
  
  min - 1: -17179869185
  
  max: 17179869183
  
  max + 1: 17179869184
  
  -----
  
  bits used to store value: 36
  
  min: -34359738368
  
  min - 1: -34359738369
  
  max: 34359738367
  
  max + 1: 34359738368
  
  -----
  
  bits used to store value: 37
  
  min: -68719476736
  
  min - 1: -68719476737
  
  max: 68719476735
  
  max + 1: 68719476736
  
  -----
  
  bits used to store value: 38
  
  min: -137438953472
  
  min - 1: -137438953473
  
  max: 137438953471
  
  max + 1: 137438953472
  
  -----
  
  bits used to store value: 39
  
  min: -274877906944
  
  min - 1: -274877906945
  
  max: 274877906943
  
  max + 1: 274877906944
  
  -----
  
  bits used to store value: 40
  
  min: -549755813888
  
  min - 1: -549755813889
  
  max: 549755813887
  
  max + 1: 549755813888
  
  -----
  
  bits used to store value: 41
  
  min: -1099511627776
  
  min - 1: -1099511627777
  
  max: 1099511627775
  
  max + 1: 1099511627776
  
  -----
  
  bits used to store value: 42
  
  min: -2199023255552
  
  min - 1: -2199023255553
  
  max: 2199023255551
  
  max + 1: 2199023255552
  
  -----
  
  bits used to store value: 43
  
  min: -4398046511104
  
  min - 1: -4398046511105
  
  max: 4398046511103
  
  max + 1: 4398046511104
  
  -----
  
  bits used to store value: 44
  
  min: -8796093022208
  
  min - 1: -8796093022209
  
  max: 8796093022207
  
  max + 1: 8796093022208
  
  -----
  
  bits used to store value: 45
  
  min: -17592186044416
  
  min - 1: -17592186044417
  
  max: 17592186044415
  
  max + 1: 17592186044416
  
  -----
  
  bits used to store value: 46
  
  min: -35184372088832
  
  min - 1: -35184372088833
  
  max: 35184372088831
  
  max + 1: 35184372088832
  
  -----
  
  bits used to store value: 47
  
  min: -70368744177664
  
  min - 1: -70368744177665
  
  max: 70368744177663
  
  max + 1: 70368744177664
  
  -----
  
  bits used to store value: 48
  
  min: -140737488355328
  
  min - 1: -140737488355329
  
  max: 140737488355327
  
  max + 1: 140737488355328
  
  -----
  
  bits used to store value: 49
  
  min: -281474976710656
  
  min - 1: -281474976710657
  
  max: 281474976710655
  
  max + 1: 281474976710656
  
  -----
  
  bits used to store value: 50
  
  min: -562949953421312
  
  min - 1: -562949953421313
  
  max: 562949953421311
  
  max + 1: 562949953421312
  
  -----
  
  bits used to store value: 51
  
  min: -1125899906842624
  
  min - 1: -1125899906842625
  
  max: 1125899906842623
  
  max + 1: 1125899906842624
  
  -----
  
  bits used to store value: 52
  
  min: -2251799813685248
  
  min - 1: -2251799813685249
  
  max: 2251799813685247
  
  max + 1: 2251799813685248
  
  -----
  
  bits used to store value: 53
  
  min: -4503599627370496
  
  min - 1: -4503599627370497
  
  max: 4503599627370495
  
  max + 1: 4503599627370496
  
  -----
  
  bits used to store value: 54
  
  min: -9007199254740992
  
  min - 1: -9007199254740992
  
  max: 9007199254740991
  
  max + 1: 9007199254740992
  
  -----
  
  bits used to store value: 55
  
  min: -18014398509481984
  
  min - 1: -18014398509481984
  
  max: 18014398509481984
  
  max + 1: 18014398509481984
  
  -----
  
  bits used to store value: 56
  
  min: -36028797018963970
  
  min - 1: -36028797018963970
  
  max: 36028797018963970
  
  max + 1: 36028797018963970
  
  -----
  
  bits used to store value: 57
  
  min: -72057594037927940
  
  min - 1: -72057594037927940
  
  max: 72057594037927940
  
  max + 1: 72057594037927940
  
  -----
  
  bits used to store value: 58
  
  min: -144115188075855870
  
  min - 1: -144115188075855870
  
  max: 144115188075855870
  
  max + 1: 144115188075855870
  
  -----
  
  bits used to store value: 59
  
  min: -288230376151711740
  
  min - 1: -288230376151711740
  
  max: 288230376151711740
  
  max + 1: 288230376151711740
  
  -----
  
  bits used to store value: 60
  
  min: -576460752303423500
  
  min - 1: -576460752303423500
  
  max: 576460752303423500
  
  max + 1: 576460752303423500
  
  -----
  
  bits used to store value: 61
  
  min: -1152921504606847000
  
  min - 1: -1152921504606847000
  
  max: 1152921504606847000
  
  max + 1: 1152921504606847000
  
  -----
  
  bits used to store value: 62
  
  min: -2305843009213694000
  
  min - 1: -2305843009213694000
  
  max: 2305843009213694000
  
  max + 1: 2305843009213694000
  
  -----
  
  bits used to store value: 63
  
  min: -4611686018427388000
  
  min - 1: -4611686018427388000
  
  max: 4611686018427388000
  
  max + 1: 4611686018427388000
  
  -----
  
  bits used to store value: 64
  
  min: -9223372036854776000
  
  min - 1: -9223372036854776000
  
  max: 9223372036854776000
  
  max + 1: 9223372036854776000
  
  -----
  
  bits used to store value: 65
  
  min: -18446744073709552000
  
  min - 1: -18446744073709552000
  
  max: 18446744073709552000
  
  max + 1: 18446744073709552000
  
  -----
  
  bits used to store value: 66
  
  min: -36893488147419103000
  
  min - 1: -36893488147419103000
  
  max: 36893488147419103000
  
  max + 1: 36893488147419103000
  
  -----
  
  bits used to store value: 67
  
  min: -73786976294838210000
  
  min - 1: -73786976294838210000
  
  max: 73786976294838210000
  
  max + 1: 73786976294838210000
  
  -----
  
  bits used to store value: 68
  
  min: -147573952589676410000
  
  min - 1: -147573952589676410000
  
  max: 147573952589676410000
  
  max + 1: 147573952589676410000
  
  -----
  
  bits used to store value: 69
  
  min: -295147905179352830000
  
  min - 1: -295147905179352830000
  
  max: 295147905179352830000
  
  max + 1: 295147905179352830000
  
  -----
  
  bits used to store value: 70
  
  min: -590295810358705700000
  
  min - 1: -590295810358705700000
  
  max: 590295810358705700000
  
  max + 1: 590295810358705700000
  
  -----
  
  bits used to store value: 71
  
  min: -1.1805916207174113e+21
  
  min - 1: -1.1805916207174113e+21
  
  max: 1.1805916207174113e+21
  
  max + 1: 1.1805916207174113e+21
  
  -----
  
  bits used to store value: 72
  
  min: -2.3611832414348226e+21
  
  min - 1: -2.3611832414348226e+21
  
  max: 2.3611832414348226e+21
  
  max + 1: 2.3611832414348226e+21
  
  -----
  
  bits used to store value: 73
  
  min: -4.722366482869645e+21
  
  min - 1: -4.722366482869645e+21
  
  max: 4.722366482869645e+21
  
  max + 1: 4.722366482869645e+21
  
  -----
  
  bits used to store value: 74
  
  min: -9.44473296573929e+21
  
  min - 1: -9.44473296573929e+21
  
  max: 9.44473296573929e+21
  
  max + 1: 9.44473296573929e+21
  
  -----
  
  bits used to store value: 75
  
  min: -1.888946593147858e+22
  
  min - 1: -1.888946593147858e+22
  
  max: 1.888946593147858e+22
  
  max + 1: 1.888946593147858e+22
  
  -----
  
  bits used to store value: 76
  
  min: -3.777893186295716e+22
  
  min - 1: -3.777893186295716e+22
  
  max: 3.777893186295716e+22
  
  max + 1: 3.777893186295716e+22
  
  -----
  
  bits used to store value: 77
  
  min: -7.555786372591432e+22
  
  min - 1: -7.555786372591432e+22
  
  max: 7.555786372591432e+22
  
  max + 1: 7.555786372591432e+22
  
  -----
  
  bits used to store value: 78
  
  min: -1.5111572745182865e+23
  
  min - 1: -1.5111572745182865e+23
  
  max: 1.5111572745182865e+23
  
  max + 1: 1.5111572745182865e+23
  
  -----
  
  bits used to store value: 79
  
  min: -3.022314549036573e+23
  
  min - 1: -3.022314549036573e+23
  
  max: 3.022314549036573e+23
  
  max + 1: 3.022314549036573e+23
  
  -----
  
  bits used to store value: 80
  
  min: -6.044629098073146e+23
  
  min - 1: -6.044629098073146e+23
  
  max: 6.044629098073146e+23
  
  max + 1: 6.044629098073146e+23
  
  -----
  
  bits used to store value: 81
  
  min: -1.2089258196146292e+24
  
  min - 1: -1.2089258196146292e+24
  
  max: 1.2089258196146292e+24
  
  max + 1: 1.2089258196146292e+24
  
  -----
  
  bits used to store value: 82
  
  min: -2.4178516392292583e+24
  
  min - 1: -2.4178516392292583e+24
  
  max: 2.4178516392292583e+24
  
  max + 1: 2.4178516392292583e+24
  
  -----
  
  bits used to store value: 83
  
  min: -4.835703278458517e+24
  
  min - 1: -4.835703278458517e+24
  
  max: 4.835703278458517e+24
  
  max + 1: 4.835703278458517e+24
  
  -----
  
  bits used to store value: 84
  
  min: -9.671406556917033e+24
  
  min - 1: -9.671406556917033e+24
  
  max: 9.671406556917033e+24
  
  max + 1: 9.671406556917033e+24
  
  -----
  
  bits used to store value: 85
  
  min: -1.9342813113834067e+25
  
  min - 1: -1.9342813113834067e+25
  
  max: 1.9342813113834067e+25
  
  max + 1: 1.9342813113834067e+25
  
  -----
  
  bits used to store value: 86
  
  min: -3.8685626227668134e+25
  
  min - 1: -3.8685626227668134e+25
  
  max: 3.8685626227668134e+25
  
  max + 1: 3.8685626227668134e+25
  
  -----
  
  bits used to store value: 87
  
  min: -7.737125245533627e+25
  
  min - 1: -7.737125245533627e+25
  
  max: 7.737125245533627e+25
  
  max + 1: 7.737125245533627e+25
  
  -----
  
  bits used to store value: 88
  
  min: -1.5474250491067253e+26
  
  min - 1: -1.5474250491067253e+26
  
  max: 1.5474250491067253e+26
  
  max + 1: 1.5474250491067253e+26
  
  -----
  
  bits used to store value: 89
  
  min: -3.094850098213451e+26
  
  min - 1: -3.094850098213451e+26
  
  max: 3.094850098213451e+26
  
  max + 1: 3.094850098213451e+26
  
  -----
  
  bits used to store value: 90
  
  min: -6.189700196426902e+26
  
  min - 1: -6.189700196426902e+26
  
  max: 6.189700196426902e+26
  
  max + 1: 6.189700196426902e+26
  
  -----
  
  bits used to store value: 91
  
  min: -1.2379400392853803e+27
  
  min - 1: -1.2379400392853803e+27
  
  max: 1.2379400392853803e+27
  
  max + 1: 1.2379400392853803e+27
  
  -----
  
  bits used to store value: 92
  
  min: -2.4758800785707605e+27
  
  min - 1: -2.4758800785707605e+27
  
  max: 2.4758800785707605e+27
  
  max + 1: 2.4758800785707605e+27
  
  -----
  
  bits used to store value: 93
  
  min: -4.951760157141521e+27
  
  min - 1: -4.951760157141521e+27
  
  max: 4.951760157141521e+27
  
  max + 1: 4.951760157141521e+27
  
  -----
  
  bits used to store value: 94
  
  min: -9.903520314283042e+27
  
  min - 1: -9.903520314283042e+27
  
  max: 9.903520314283042e+27
  
  max + 1: 9.903520314283042e+27
  
  -----
  
  bits used to store value: 95
  
  min: -1.9807040628566084e+28
  
  min - 1: -1.9807040628566084e+28
  
  max: 1.9807040628566084e+28
  
  max + 1: 1.9807040628566084e+28
  
  -----
  
  bits used to store value: 96
  
  min: -3.961408125713217e+28
  
  min - 1: -3.961408125713217e+28
  
  max: 3.961408125713217e+28
  
  max + 1: 3.961408125713217e+28
  
  -----
  
  bits used to store value: 97
  
  min: -7.922816251426434e+28
  
  min - 1: -7.922816251426434e+28
  
  max: 7.922816251426434e+28
  
  max + 1: 7.922816251426434e+28
  
  -----
  
  bits used to store value: 98
  
  min: -1.5845632502852868e+29
  
  min - 1: -1.5845632502852868e+29
  
  max: 1.5845632502852868e+29
  
  max + 1: 1.5845632502852868e+29
  
  -----
  
  bits used to store value: 99
  
  min: -3.1691265005705735e+29
  
  min - 1: -3.1691265005705735e+29
  
  max: 3.1691265005705735e+29
  
  max + 1: 3.1691265005705735e+29
  
  -----
  
  bits used to store value: 100
  
  min: -6.338253001141147e+29
  
  min - 1: -6.338253001141147e+29
  
  max: 6.338253001141147e+29
  
  max + 1: 6.338253001141147e+29
  
  -----
  
  bits used to store value: 101
  
  min: -1.2676506002282294e+30
  
  min - 1: -1.2676506002282294e+30
  
  max: 1.2676506002282294e+30
  
  max + 1: 1.2676506002282294e+30
  
  -----
  
  bits used to store value: 102
  
  min: -2.535301200456459e+30
  
  min - 1: -2.535301200456459e+30
  
  max: 2.535301200456459e+30
  
  max + 1: 2.535301200456459e+30
  
  -----
  
  bits used to store value: 103
  
  min: -5.070602400912918e+30
  
  min - 1: -5.070602400912918e+30
  
  max: 5.070602400912918e+30
  
  max + 1: 5.070602400912918e+30
  
  -----
  
  bits used to store value: 104
  
  min: -1.0141204801825835e+31
  
  min - 1: -1.0141204801825835e+31
  
  max: 1.0141204801825835e+31
  
  max + 1: 1.0141204801825835e+31
  
  -----
  
  bits used to store value: 105
  
  min: -2.028240960365167e+31
  
  min - 1: -2.028240960365167e+31
  
  max: 2.028240960365167e+31
  
  max + 1: 2.028240960365167e+31
  
  -----
  
  bits used to store value: 106
  
  min: -4.056481920730334e+31
  
  min - 1: -4.056481920730334e+31
  
  max: 4.056481920730334e+31
  
  max + 1: 4.056481920730334e+31
  
  -----
  
  bits used to store value: 107
  
  min: -8.112963841460668e+31
  
  min - 1: -8.112963841460668e+31
  
  max: 8.112963841460668e+31
  
  max + 1: 8.112963841460668e+31
  
  -----
  
  bits used to store value: 108
  
  min: -1.6225927682921336e+32
  
  min - 1: -1.6225927682921336e+32
  
  max: 1.6225927682921336e+32
  
  max + 1: 1.6225927682921336e+32
  
  -----
  
  bits used to store value: 109
  
  min: -3.2451855365842673e+32
  
  min - 1: -3.2451855365842673e+32
  
  max: 3.2451855365842673e+32
  
  max + 1: 3.2451855365842673e+32
  
  -----
  
  bits used to store value: 110
  
  min: -6.490371073168535e+32
  
  min - 1: -6.490371073168535e+32
  
  max: 6.490371073168535e+32
  
  max + 1: 6.490371073168535e+32
  
  -----
  
  bits used to store value: 111
  
  min: -1.298074214633707e+33
  
  min - 1: -1.298074214633707e+33
  
  max: 1.298074214633707e+33
  
  max + 1: 1.298074214633707e+33
  
  -----
  
  bits used to store value: 112
  
  min: -2.596148429267414e+33
  
  min - 1: -2.596148429267414e+33
  
  max: 2.596148429267414e+33
  
  max + 1: 2.596148429267414e+33
  
  -----
  
  bits used to store value: 113
  
  min: -5.192296858534828e+33
  
  min - 1: -5.192296858534828e+33
  
  max: 5.192296858534828e+33
  
  max + 1: 5.192296858534828e+33
  
  -----
  
  bits used to store value: 114
  
  min: -1.0384593717069655e+34
  
  min - 1: -1.0384593717069655e+34
  
  max: 1.0384593717069655e+34
  
  max + 1: 1.0384593717069655e+34
  
  -----
  
  bits used to store value: 115
  
  min: -2.076918743413931e+34
  
  min - 1: -2.076918743413931e+34
  
  max: 2.076918743413931e+34
  
  max + 1: 2.076918743413931e+34
  
  -----
  
  bits used to store value: 116
  
  min: -4.153837486827862e+34
  
  min - 1: -4.153837486827862e+34
  
  max: 4.153837486827862e+34
  
  max + 1: 4.153837486827862e+34
  
  -----
  
  bits used to store value: 117
  
  min: -8.307674973655724e+34
  
  min - 1: -8.307674973655724e+34
  
  max: 8.307674973655724e+34
  
  max + 1: 8.307674973655724e+34
  
  -----
  
  bits used to store value: 118
  
  min: -1.661534994731145e+35
  
  min - 1: -1.661534994731145e+35
  
  max: 1.661534994731145e+35
  
  max + 1: 1.661534994731145e+35
  
  -----
  
  bits used to store value: 119
  
  min: -3.32306998946229e+35
  
  min - 1: -3.32306998946229e+35
  
  max: 3.32306998946229e+35
  
  max + 1: 3.32306998946229e+35
  
  -----
  
  bits used to store value: 120
  
  min: -6.64613997892458e+35
  
  min - 1: -6.64613997892458e+35
  
  max: 6.64613997892458e+35
  
  max + 1: 6.64613997892458e+35
  
  -----
  
  bits used to store value: 121
  
  min: -1.329227995784916e+36
  
  min - 1: -1.329227995784916e+36
  
  max: 1.329227995784916e+36
  
  max + 1: 1.329227995784916e+36
  
  -----
  
  bits used to store value: 122
  
  min: -2.658455991569832e+36
  
  min - 1: -2.658455991569832e+36
  
  max: 2.658455991569832e+36
  
  max + 1: 2.658455991569832e+36
  
  -----
  
  bits used to store value: 123
  
  min: -5.316911983139664e+36
  
  min - 1: -5.316911983139664e+36
  
  max: 5.316911983139664e+36
  
  max + 1: 5.316911983139664e+36
  
  -----
  
  bits used to store value: 124
  
  min: -1.0633823966279327e+37
  
  min - 1: -1.0633823966279327e+37
  
  max: 1.0633823966279327e+37
  
  max + 1: 1.0633823966279327e+37
  
  -----
  
  bits used to store value: 125
  
  min: -2.1267647932558654e+37
  
  min - 1: -2.1267647932558654e+37
  
  max: 2.1267647932558654e+37
  
  max + 1: 2.1267647932558654e+37
  
  -----
  
  bits used to store value: 126
  
  min: -4.253529586511731e+37
  
  min - 1: -4.253529586511731e+37
  
  max: 4.253529586511731e+37
  
  max + 1: 4.253529586511731e+37
  
  -----
  
  bits used to store value: 127
  
  min: -8.507059173023462e+37
  
  min - 1: -8.507059173023462e+37
  
  max: 8.507059173023462e+37
  
  max + 1: 8.507059173023462e+37
  
  -----
  
  bits used to store value: 128
  
  min: -1.7014118346046923e+38
  
  min - 1: -1.7014118346046923e+38
  
  max: 1.7014118346046923e+38
  
  max + 1: 1.7014118346046923e+38
  
  
  
  1.1                  WebCore/layout-tests/fast/js/integer-extremes.html
  
  Index: integer-extremes.html
  ===================================================================
  <html>
  <head>
  <script>
  function print(message) {
      var paragraph = document.createElement("p");
      paragraph.appendChild(document.createTextNode(message));
      document.getElementById("console").appendChild(paragraph);
  }
  
  function test() {
      if (window.layoutTestController) {
          layoutTestController.dumpAsText();
      }
  
      print("-1: " + -1);
      print("0: " + 0);
      print("-0: " + -0);
      
      for (var valueBits = 8; valueBits <= 128; valueBits++) {
          print("-----");
          print("bits used to store value: " + valueBits);
          var max = Math.pow(2, valueBits - 1) - 1;
          var min = -Math.pow(2, valueBits - 1);
          print("min: " + min);
          print("min - 1: " + (min - 1));
          print("max: " + max);
          print("max + 1: " + (max + 1));
      }
  }
  </script>
  </head>
  <body onload="test();">
  <p>This test verifies that the bit twiddling done in JavaScriptCore's integer machinery works correctly on the current platform.</p>
  <p>Below, you will see a listing of the extremes related to representing integers using a certain number of bits. If the test succeeds, you should see:</p>
  <ul>
  <li> 0, -0, and -1</li>
  <li> max: 2 ^ ([number of bits] - 1) - 1</li>
  <li> min: -(max + 1)</li>
  <li> a corresponding max + 1 and min - 1</li>
  </ul>
  <hr>
  <div id='console'/>
  </body>
  </html>
  
  
  



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